collect the body and make assert against the collected body

This saves a lambda and request allocation on each request.

We should keep the route set generation logic in one place

If we subclass and augment the superclass, then we don't need to have
setters for particular things on the superclass.

`💅`

controller class resolution has been moved to the request object, so we
should override that method instead of relying on the RouteSet to
generate the controller class.

This commit allows us to use one request object rather than allocating
multiple request objects to deal with the session.

This refactoring moves the controller class name that was on the route
set to the request. The purpose of this refactoring is for changes we
need to move controller tests to integration tests, mainly being able to
access the controller on the request instead of having to go through
the router.

[Eileen M. Uchitelle & Aaron Patterson]

I'm going to change the constructor, so it's easier to do it in one
place.

nobody should be touching the routes hash without going through the
NamedRouteCollection object.

I want to change the real constructor to take a particular parameter for
matching the request method

The string we create is almost always the same, so rather than joining
all the time, lets join once, then reuse that string everywhere.

We should build the routes using the user facing API which is `Mapper`.
This frees up the library internals to change as we see fit. IOW we
shouldn't be testing internals.

The outer router object already keeps a hash of named routes, so we
should just use that.

refactor the tests with a backwards compatible method call so we can rm
add_route2 from the journey router

then we can let the mapping object derive stuff that the Route object
needs.

now that we aren't doing options manipulations, we can just pass the
mapping object down and read values from it.

now we don't need to add it to a hash and delete it from the hash later
just to pass it around

`add_route` needs the AST, so rather than shove it in a hash and delete
later, lets move parsing up the stack so we can pass down later

also change the feeler to subclass AD::Request so that it has all the
methods that Request has

Eventually I want to eliminate the FakeSet test class

I'm going to reimplement this using route objects, so it will be easier
if we just change ast access to go through a method rather than hashes

we don't need to keep adding it and deleting if from hashes.

This was a useless object.  We can just directly construct a
Path::Pattern object without a Strexp object.

the caller already has it, there is no reason to pack it in to an object
and just throw that object away.